222336500161 has 2 divisors, whose sum is σ = 222336500162. Its totient is φ = 222336500160.

The previous prime is 222336500131. The next prime is 222336500227. The reversal of 222336500161 is 161005633222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206097840400 + 16238659761 = 453980^2 + 127431^2 .

It is a cyclic number.

It is not a de Polignac number, because 222336500161 - 2²¹ = 222334403009 is a prime.

It is not a weakly prime, because it can be changed into another prime (222336500131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111168250080 + 111168250081.

It is an arithmetic number, because the mean of its divisors is an integer number (111168250081).

Almost surely, 2^222336500161 is an apocalyptic number.

It is an amenable number.

222336500161 is a deficient number, since it is larger than the sum of its proper divisors (1).

222336500161 is an equidigital number, since it uses as much as digits as its factorization.

222336500161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 222336500161 in words is "two hundred twenty-two billion, three hundred thirty-six million, five hundred thousand, one hundred sixty-one".